Richland County Flag

Richland County

State:
Montana
County Seat:
Sidney

Richland County's estimated 2025 population is 11,059 with a growth rate of -0.51% in the past year according to the most recent United States census data. Richland County is the 20th largest county in Montana. The 2010 population was 9,760 and has seen a growth of 13.31% since that time.

11,059
Total Population
5
Population Density (mi²)
20
Population Rank (State)
-57 -0.51%
Annual Population Growth

Richland County Population

Richland County Population

Data after 2023 is projected based on recent change

Demographics

The racial composition of Richland County includes 90.6% White, and smaller percentages for other race, Native Hawaiian or Pacific Islander, Asian, Black or African American, Native American and multiracial populations.

Population by Race

White

Two or more races

Other race

Native Hawaiian or Pacific Islander

Asian

Black or African American

Native American

Race
Population
Percentage (of total)
White10,26490.6%
Two or more races6095.38%
Other race2712.39%
Native Hawaiian or Pacific Islander980.87%
Asian310.27%
Black or African American280.25%
Native American280.25%

Richland County Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Richland County's average per capita income is $46,544. Household income levels show a median of $69,578. The poverty rate stands at 7.15%.

Families: A family includes the owner or renter of the home along with everyone related to them - whether through birth, marriage, or adoption. This includes relatives like spouses, children, parents, siblings, grandparents, and any other family members.
Households: A household includes all the people who occupy a housing unit (such as a house or apartment) as their usual place of residence.
Non Families: A nonfamily household is either someone living alone or when the owner/renter lives with people they aren't related to, like roommates.
Name
Median
Mean
Married Families$100,875-
Families$87,353$109,458
Households$69,578$93,356
Non Families$36,750$61,061

$46,544

Average Income

$69,578

Median Household Income

7.15%

Poverty Rate